I have an older bag of CSM+B, and it the second bag that I have purchased.
It seems to change color over time, and get coarser. I remembered it being more of a finer powder.
I tossed the older bag when it changed color and became coarser.
And I am at that point again.
Does CSM+B have a shelf life?
I searched the forum and discovered that I have been using it incorrectly, making a solution is a better way of dosing CSM+B rather then dry.
I have been dosing it incorrectly for about a decade, wops